If you are using Infoblox DNS as your DNS management system, there are a few items to be aware of when pointing DMARC and/or DKIM to Valimail via an NS record and also something to be aware of when pointing SPF to Valimail for your domain.
For context, when adding an NS record (ns.vali.email) in Infoblox DNS, the Infoblox UI requires that you add at least one IP address for the Name Server. Since Valimail may occasionally change IPs addresses for the DNS service, adding IP addresses can cause problems. To address this in the Infoblox UI, enter an IP address of 255.255.255.255. This will cause Infoblox to dynamically query for the current IPs for ns.vali.email when resolving.
How to point DMARC to Valimail via NS record in InfoBlox DNS
Click on Subzone. Click on the + sign and choose Forward Zone.
Select "Add a forward forward mapping zone".
Click Next.
Make sure the name is _dmarc.yourdomain.com
Make sure the DNS View field is set to External.
Click Next.
Click on the + sign to add the zone details.
Make sure to add ns.vali.email under Name and the IP 255.255.255.255 under Address.
Click Next.
Click Next on the Step 4 of 6 window and Next again on the Step 5 of 6 one.
Click Save & Close.
How to point DKIM to Valimail via NS record in InfoBlox DNS
Repeat all the steps from the How to point DMARC to Valimail via NS record in InfoBlox DNS section, with the only change being _domainkey.yourdomain.com instead of _dmarc.yourdomain.com in the Zone Name at Step 2 of 6.
How to point SPF to Valimail via NS record in InfoBlox DNS
Got to Records and look for the SPF record by selecting Type, equals and TXT record.
Find the v=spf1 TXT record and edit it.
Replace all the data in the value with Valimail's SPF Macro.
Make sure you add the quote symbol (") at the beginning and end of the record:
"v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all"
Click Save & Close.